US7979008B2 - Toner supplying device, developing device and image forming apparatus having toner supplying device - Google Patents
Toner supplying device, developing device and image forming apparatus having toner supplying device Download PDFInfo
- Publication number
- US7979008B2 US7979008B2 US11/708,010 US70801007A US7979008B2 US 7979008 B2 US7979008 B2 US 7979008B2 US 70801007 A US70801007 A US 70801007A US 7979008 B2 US7979008 B2 US 7979008B2
- Authority
- US
- United States
- Prior art keywords
- toner
- clutch
- driving shaft
- gear member
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0865—Arrangements for supplying new developer
- G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
- G03G15/0868—Toner cartridges fulfilling a continuous function within the electrographic apparatus during the use of the supplied developer material, e.g. toner discharge on demand, storing residual toner, acting as an active closure for the developer replenishing opening
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/06—Developing structures, details
- G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
- G03G2215/0685—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material fulfilling a continuous function within the electrographic apparatus during the use of the supplied developer material, e.g. toner discharge on demand, storing residual toner, not acting as a passive closure for the developer replenishing opening
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
- G03G2221/1657—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts transmitting mechanical drive power
Definitions
- the present general inventive concept relates to a color toner supplying device of a toner-refill type color image forming apparatus and a developing device having the same, and an image forming apparatus having the developing device.
- Toner-refill type color image forming apparatuses comprise four toner receptacles for storing respective color toners, such as yellow, magenta, cyan and black.
- the four toner receptacles include augers, which are toner discharging members for discharging toners from inside the toner receptacles to the outside.
- the augers may be rotated by power transmitted from a driving source. Accordingly, the augers are connected to the driving source using electric clutches, so that only the auger of the toner receptacle containing an insufficient amount of a color toner is rotated to supply the corresponding color toner to the developing device. At the same time, the augers of the other three toner receptacles containing sufficient amounts of the three other color toners are not rotated because the electric clutches are turned off.
- the size of the developing device is large due to the required size of the electric clutches.
- the manufacturing costs of the developing device and/or the image forming apparatus is large due to the expensive electric clutches.
- the present general inventive concept provides a toner supplying device which is capable of reducing manufacturing costs and achieving miniaturization of a developing device and/or an image forming apparatus by employing an inexpensive and small spring clutch as a power control unit.
- the present general inventive concept also provides a developing device and an image forming apparatus having the toner supplying device described above.
- a toner supplying device including a driving source, a plurality of toner receptacles, in which different color toners are contained and respective toner discharging members are provided in order to discharge the toner while being driven by power transmitted from the driving source, and a plurality of spring clutches to selectively transmit power from the driving source to the toner discharging members.
- the spring clutches may include a driving shaft connected to the driving source, a clutch hub connected to the driving shaft so as to rotate together with the driving shaft, a clutch collar mounted on the driving shaft so as to be selectively rotated, a first gear member mounted on the driving shaft so as to be selectively rotated, a spring of which one end is fixed to the clutch collar and the other end is fixed to the first gear member to connect the clutch hub to the first gear member, and a solenoid to stop rotation of the clutch collar to release the connection of the spring and the clutch hub.
- a second gear member meshed with the first gear member may be provided.
- the first and second gear members have power transmission structures of worms and worm gears.
- the driving shaft and the clutch hub can be engaged with splines or serrations.
- the spring clutches control power transmitted to the toner discharging members of each toner receptacle.
- a developing device may include a developing case comprising a plurality of toner containers containing toners of different colors, a developing roller mounted to each end of the toner containers of the developing case, and a toner supplying device as described above which is capable of individually supplying each toner to the corresponding toner containers.
- the developing device may include a toner amount detecting sensor unit to detect the amount of toner contained in each toner container, and a controller to receive information from the toner amount detecting sensor unit to drive the solenoid corresponding to the toner container containing toner in insufficient amounts.
- an image forming apparatus including a photosensitive medium on which an electrostatic latent image is formed, a developing device to develop the electrostatic latent image formed on the photosensitive medium in which toners of different colors are transferred and attached, an intermediate transfer belt on which developed toner images on the photosensitive medium are overlapped and transferred, and a transfer unit to transfer the toner images to a printing medium.
- the developing device may include a developing case including a plurality of toner containers to contain toners of different colors, a developing roller mounted to each end of the toner containers of the developing case, and a toner supplying device as described above which is capable of individually supplying each toner to the corresponding toner containers.
- an image forming apparatus including a toner supplying device including a plurality of toner receptacles in which different color toners are contained and respective toner discharging members are provided in order to discharge toners from corresponding toner receptacles when driven by a driving source, and a plurality of driving shafts connected along a line by universal joints, each driving shaft corresponding to a respective one of the toner receptacles, each one of the plurality of driving shafts driven independently of the others to drive the respective discharging member.
- the image forming apparatus may further include a plurality of spring clutches, each spring clutch connected with a respective one of the drive shafts to selectively transmit power from the driving source to a respective one of the toner discharging members via the respective connected drive shaft.
- the spring clutches may include a respective drive shaft connect to the driving source, a clutch hub connected to the respective drive shaft to rotate together with the drive shaft, a clutch collar and first gear member mounted on the driving shaft to be selectively rotated, a spring selectively connecting the clutch hub to a first gear member to transmit power; and a solenoid to stop the rotation of the clutch collar to release the connection between the spring and the clutch hub.
- FIG. 1 is a schematic perspective view of a toner supplying device according to an exemplary embodiment of the present general inventive concept
- FIG. 2 is a perspective view of the toner supplying device without the toner receptacles illustrated in FIG. 1 ;
- FIG. 3 is a detailed view of the main parts of the exemplary embodiments of the present general inventive concept
- FIGS. 4A to 4B are assembled perspective views and exploded perspective views of the spring clutch which is an important part of the exemplary embodiments of the present general inventive concept;
- FIG. 5 is a view explaining the operation of the spring clutch which is an important part of the exemplary embodiments of the present general inventive concept.
- FIG. 6 is a schematic view of an image forming apparatus having a developing device that employs the toner supplying device according to an exemplary embodiment of the present general inventive concept.
- FIGS. 1 to 3 are views illustrating a toner supplying device of an image forming apparatus according to an exemplary embodiment of the present general inventive concept.
- reference numeral 10 represents a driving source
- reference numeral 20 represents toner receptacles
- reference numeral 30 represents spring clutches
- reference numeral 40 represents a developing case.
- the driving source 10 may include a driving gear rotatably installed on one side of the developing case 40 .
- power may be transmitted by connecting the driving source to other power devices through a gear train (not illustrated) or the like.
- the driving source 10 may comprise a separate motor or the like.
- the four toner receptacles 20 respectively store yellow, magenta, cyan, and black color toners, and are detachably disposed on appropriate positions of the developing case 40 .
- each of the toner receptacles 20 includes a toner discharging member (not illustrated) such as an auger to discharge toners from inside the toner receptacles to the outside while being driven by power transmitted from the driving source 10 .
- the toners that are discharged from the toner receptacles by driving the toner discharging member are supplied to toner containers 110 (referring to FIG. 6 ) containing four respective color toners in the developing case 40 .
- the four spring clutches 30 are provided corresponding to the respective toner receptacles 20 in order to selectively transmit power from the driving source 10 to the respective toner discharging member.
- the toner discharging members of the toner receptacles 20 corresponding to the respective spring clutches 30 are driven so that only toner which is required can be supplied to the corresponding toner container 110 (referring to FIG. 6 ) of a developing device 100 (referring to FIG. 6 ).
- each of the spring clutches 30 includes a driving shaft 31 connected to the driving source 10 , a clutch hub 32 connected to the driving shaft 31 so as to rotate together with the driving shaft 31 , a clutch collar 33 and a first gear member 34 which are mounted on the driving shaft 31 so as to be selectively rotated, a spring 35 selectively connecting the clutch hub 32 to the first gear member 34 so that power is transmitted, and a solenoid 36 to stop the rotation of the clutch collar 33 to release the connection between the spring 35 and the clutch hub 32 .
- the exemplary embodiments of the present general inventive concept illustrate a structure in which a first shaft 31 a and a second shaft 31 b of the driving shaft 31 are connected by a universal joint 31 c by disposing the four toner receptacles 20 on an incline, but the present general inventive concept is not limited to this structure.
- this structure when one driving shaft 31 is employed and an idle gear (not illustrated) is disposed between the driving shaft 31 and toner receptacles 20 , power can be transmitted.
- the four toner receptacles 20 are disposed in a straight line unlike the above structure, power can be transmitted using one driving shaft without a separate idle gear.
- the clutch hub 32 and the driving shaft 31 engage with splines or serrations, and accordingly the clutch hub 32 can rotate together with the driving shaft 31 when the driving shaft 31 rotates.
- the clutch hub 32 includes a drum unit 32 a.
- the clutch collar 33 includes a drum unit 33 a and a latch unit 33 b , and is selectively rotated on the driving shaft 31 .
- the clutch hub 32 is disposed on the interior of the clutch collar 33 , and the inner circumference of the clutch collar 33 is spaced at a predetermined interval from the outer circumference of the clutch hub 32 .
- the first gear member 34 includes a worm 34 d and a drum unit 34 a .
- the first gear member 34 is selectively rotated on the driving shaft 31 similarly to the clutch collar 33 .
- a second gear member 37 (see FIG. 5 ) is provided to mesh with the first gear member 34 at the worm 34 d , and includes a worm gear to engage with the worm 34 d .
- the second gear member 37 may mesh with the idle gear 38
- the idle gear 38 may mesh with a third gear member 39 having a connector 39 a which connects to the toner discharging members inside the toner receptacles 20 .
- the black toner receptacle 20 (not illustrated, but connects with the connector 39 a ) is disposed far apart from the driving shaft 31 , power is transmitted to the toner discharging member of the black toner receptacle 20 using the idle gear 38 and the third gear member 39 .
- the toner receptacle 20 is not disposed apart from the driving shaft 31 , it is possible to form a connector of the toner discharging member in the second gear member 37 or the idle gear 38 without using the third gear member 39 .
- the clutch spring 35 encloses the drum unit 32 a of the clutch hub 32 and the drum unit 34 a of the first gear member 34 .
- One end 35 a of the clutch spring 35 fixes to a fixing groove 33 c of the clutch collar 33
- the other end 35 b thereof fixes to a fixing groove 34 c of the first gear member 34 .
- the clutch spring 35 attaches to the drum unit 32 a of the clutch hub 32 while being wound so that the rotational force of the clutch hub 32 may be transmitted to the first gear member 34 .
- the clutch collar 33 also rotates together with the clutch spring 35 .
- the clutch spring 35 may be unwound and released from the clutch hub 32 so that the rotational force transmitted to the first gear member 34 from the clutch hub 32 can be cut off.
- the solenoid 36 releases the connection between the clutch spring 35 and clutch hub 32 by selectively stopping the rotation of the clutch collar 33 , and includes a locking projection 36 a (see for example FIG. 5 ).
- the locking projection 36 a is lifted up and comes into contact with the latch unit 33 b of the clutch collar 33 to stop the rotation of the clutch collar 33 .
- the solenoid 36 is turned on, the locking projection 36 a moves away from the clutch collar 33 and unlocks the clutch collar 33 to allow it to be rotated.
- the solenoid 36 as described above is turned on or off by a controller 50 as illustrated in FIG. 5 .
- the controller 50 receives information from a toner amount sensor unit 60 to drive the solenoid 36 .
- the toner amount sensor unit 60 detects the amount of toner stored in each toner container 110 of the developing device 100 and transmits the information on the toner amount to the controller 50 .
- the controller 50 determines which color toner currently has an insufficient amount based on the information, and as a result, the corresponding solenoid 36 is turned on, so that the toner discharging member of the corresponding toner receptacle 20 containing the required toner is driven.
- FIG. 6 is a schematic view of an image forming apparatus having the developing device 100 that employs the above toner supplying device.
- the developing device 100 includes the developing case 40 (referring to FIGS. 1 and 2 ) including the four toner containers 110 storing toners of four respective colors, a developing roller 120 rotatably installed at each end of the toner containers 110 , and the toner supplying device as described above.
- reference numeral 200 is a photosensitive medium.
- a predetermined electrostatic latent image is formed by scanning a laser beam using an exposure unit (not illustrated).
- the developing device 100 develops the electrostatic latent image on the photosensitive medium 200 wherein a required color toner is transferred and attached.
- a predetermined color toner image developed on the photosensitive medium 200 is primarily transferred by a T 1 transfer roller 300 onto an intermediate transfer belt 400 sequentially. Accordingly, four color toner images overlap on the intermediate transfer belt 400 and a full color image is then transferred.
- the full color image transferred on the intermediate transfer belt 400 is then transferred by a T 2 transfer roller 500 onto a printing medium P.
- the color image transferred onto the printing medium P is completely fixed by the fixing unit (not illustrated), and the printing medium P on which the color image is fixed is discharged.
- the toner amount sensor unit 60 (referring to FIG. 5 ) detects the amount of toner stored in each toner container 110 and transmits the information on the toner amount to the controller 50 .
- the controller 50 determines which toner container 110 currently has an insufficient amount of color toner therein, based on the information from the toner amount sensor unit 60 .
- the corresponding solenoid 36 may be turned on by the spring clutch 30 for the black toner so that power can be transmitted to the respective toner discharging member of the black toner receptacle 20 .
- all power may be cut off by the four spring clutches 30 , that is, the solenoid 36 may stop the rotation of the clutch collar 33 . Accordingly, the first gear member 34 is not rotated, and only the driving shaft 31 is rotated.
- the toner discharging member in the toner receptacle 20 rotates to supply the toner in the toner receptacle to the toner container 110 .
- the solenoids 36 of the spring clutches 30 for the other color toners are turned off, so that power transmission to the toner discharging members of the other toner receptacles is cut off.
- the black toner is supplied in the toner container 110 to the level required, the amount of toner is detected by the toner amount sensor unit 60 , and information on the amount of toner is transmitted to the controller 50 to turn off the solenoid 36 . Accordingly, the rotation of the clutch collar 33 is stopped, and the connection between the clutch spring 35 and the clutch hub 32 is released by unwinding the clutch spring 35 winding around the drum unit 32 a of the clutch hub 32 . In other words, the first gear member 34 does not rotate any more.
Abstract
Description
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2006-0081154 | 2006-08-25 | ||
KR1020060081154A KR101248870B1 (en) | 2006-08-25 | 2006-08-25 | Toner suppling device, developing apparatus and image forming apparatus having the toner suppling devide |
KR2006-81154 | 2006-08-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20080050131A1 US20080050131A1 (en) | 2008-02-28 |
US7979008B2 true US7979008B2 (en) | 2011-07-12 |
Family
ID=38686637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/708,010 Expired - Fee Related US7979008B2 (en) | 2006-08-25 | 2007-02-20 | Toner supplying device, developing device and image forming apparatus having toner supplying device |
Country Status (4)
Country | Link |
---|---|
US (1) | US7979008B2 (en) |
EP (1) | EP1892585B1 (en) |
KR (1) | KR101248870B1 (en) |
CN (1) | CN101131558B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9176468B2 (en) | 2006-12-22 | 2015-11-03 | Canon Kabushiki Kaisha | Rotational force transmitting part |
US9477201B2 (en) | 2008-06-20 | 2016-10-25 | Canon Kabushiki Kaisha | Cartridge, mounting method for coupling member, and disassembling method for coupling member |
US9678471B2 (en) | 2006-12-22 | 2017-06-13 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9703257B2 (en) | 2007-03-23 | 2017-07-11 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101101819B1 (en) | 2007-06-29 | 2012-01-05 | 삼성전자주식회사 | Image forming apparatus and controlling method of the same |
JP6287953B2 (en) * | 2015-05-20 | 2018-03-07 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5099278A (en) * | 1989-07-26 | 1992-03-24 | Konica Corporation | Apparatus for switching and driving a plurality of driven system |
US5325151A (en) | 1992-02-27 | 1994-06-28 | Ricoh Company, Ltd. | Revolver type developing device for an image forming apparatus |
JPH08334952A (en) | 1995-06-05 | 1996-12-17 | Konica Corp | Developing unit clutch and color image forming device |
JP2000298387A (en) | 1999-04-14 | 2000-10-24 | Fuji Xerox Co Ltd | Driving system for image forming device |
US20010008590A1 (en) | 2000-01-17 | 2001-07-19 | Kazunori Katada | Drive power transmission device, image forming apparatus and process cartridge |
US20070019994A1 (en) * | 2005-06-02 | 2007-01-25 | Samsung Electronics Co., Ltd. | Electrophotographic color image forming apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2184396B (en) * | 1985-11-15 | 1990-01-17 | Canon Kk | An image forming apparatus |
JP2811091B2 (en) * | 1989-08-30 | 1998-10-15 | コニカ株式会社 | Developing drive of color image forming apparatus |
KR950009542Y1 (en) * | 1990-08-29 | 1995-11-08 | 삼성전자 주식회사 | Toner-supplying apparatus |
KR200186332Y1 (en) * | 1997-12-31 | 2000-07-01 | 윤종용 | Toner quantity controlling device of developing unit |
-
2006
- 2006-08-25 KR KR1020060081154A patent/KR101248870B1/en active IP Right Grant
-
2007
- 2007-02-20 US US11/708,010 patent/US7979008B2/en not_active Expired - Fee Related
- 2007-05-22 EP EP07108678A patent/EP1892585B1/en active Active
- 2007-06-15 CN CN2007101118227A patent/CN101131558B/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5099278A (en) * | 1989-07-26 | 1992-03-24 | Konica Corporation | Apparatus for switching and driving a plurality of driven system |
US5325151A (en) | 1992-02-27 | 1994-06-28 | Ricoh Company, Ltd. | Revolver type developing device for an image forming apparatus |
JPH08334952A (en) | 1995-06-05 | 1996-12-17 | Konica Corp | Developing unit clutch and color image forming device |
JP2000298387A (en) | 1999-04-14 | 2000-10-24 | Fuji Xerox Co Ltd | Driving system for image forming device |
US20010008590A1 (en) | 2000-01-17 | 2001-07-19 | Kazunori Katada | Drive power transmission device, image forming apparatus and process cartridge |
US6671475B2 (en) * | 2000-01-17 | 2003-12-30 | Konica Corporation | Drive power transmission device, image forming apparatus and process cartridge |
US20070019994A1 (en) * | 2005-06-02 | 2007-01-25 | Samsung Electronics Co., Ltd. | Electrophotographic color image forming apparatus |
US7421235B2 (en) * | 2005-06-02 | 2008-09-02 | Samsung Electronics Co., Ltd. | Electrophotographic color image forming apparatus |
Non-Patent Citations (1)
Title |
---|
European Search Report issued Sep. 22, 2010 in EP Application No. 07108678.9. |
Cited By (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9841729B2 (en) | 2006-12-22 | 2017-12-12 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US11156956B2 (en) | 2006-12-22 | 2021-10-26 | Canon Kabushiki Kaisha | Rotational force transmitting part |
US10209670B2 (en) | 2006-12-22 | 2019-02-19 | Canon Kabushiki Kaisha | Rotational force transmitting part |
US9678471B2 (en) | 2006-12-22 | 2017-06-13 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9846408B2 (en) | 2006-12-22 | 2017-12-19 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9733614B2 (en) | 2006-12-22 | 2017-08-15 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9746826B2 (en) | 2006-12-22 | 2017-08-29 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9772602B2 (en) | 2006-12-22 | 2017-09-26 | Canon Kabushiki Kaisha | Rotational force transmitting part |
US10877433B2 (en) | 2006-12-22 | 2020-12-29 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9836021B2 (en) | 2006-12-22 | 2017-12-05 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US10845756B2 (en) | 2006-12-22 | 2020-11-24 | Canon Kabushiki Kaisha | Rotational force transmitting part |
US10585391B2 (en) | 2006-12-22 | 2020-03-10 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US10671018B2 (en) | 2006-12-22 | 2020-06-02 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9841728B2 (en) | 2006-12-22 | 2017-12-12 | Canon Kabushiki Kaisha | Process cartridge having changeable relative positioning of a coupling member and another part of the process cartridge |
US11237517B2 (en) | 2006-12-22 | 2022-02-01 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US11720054B2 (en) | 2006-12-22 | 2023-08-08 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9841727B2 (en) | 2006-12-22 | 2017-12-12 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US10551793B2 (en) | 2006-12-22 | 2020-02-04 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9857765B2 (en) | 2006-12-22 | 2018-01-02 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US10539924B2 (en) | 2006-12-22 | 2020-01-21 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9857764B2 (en) | 2006-12-22 | 2018-01-02 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9864331B2 (en) | 2006-12-22 | 2018-01-09 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9864333B2 (en) | 2006-12-22 | 2018-01-09 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9869960B2 (en) | 2006-12-22 | 2018-01-16 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9874854B2 (en) | 2006-12-22 | 2018-01-23 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9874846B2 (en) | 2006-12-22 | 2018-01-23 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US9176468B2 (en) | 2006-12-22 | 2015-11-03 | Canon Kabushiki Kaisha | Rotational force transmitting part |
US10539923B2 (en) | 2006-12-22 | 2020-01-21 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
US10429794B2 (en) | 2006-12-22 | 2019-10-01 | Canon Kabushiki Kaisha | Rotational force transmitting part |
US9886002B2 (en) | 2007-03-23 | 2018-02-06 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US10788789B2 (en) | 2007-03-23 | 2020-09-29 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US10520887B2 (en) | 2007-03-23 | 2019-12-31 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US9939776B2 (en) | 2007-03-23 | 2018-04-10 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US9857766B2 (en) | 2007-03-23 | 2018-01-02 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US11675308B2 (en) | 2007-03-23 | 2023-06-13 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US9851685B2 (en) | 2007-03-23 | 2017-12-26 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US9851688B2 (en) | 2007-03-23 | 2017-12-26 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US10620582B2 (en) | 2007-03-23 | 2020-04-14 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US9841724B2 (en) | 2007-03-23 | 2017-12-12 | Canon Kabushiki Kaisha | Image forming apparatus cartridge having changeable relative positioning of a coupling member and another part of the image forming apparatus cartridge |
US10712709B2 (en) | 2007-03-23 | 2020-07-14 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US10712710B2 (en) | 2007-03-23 | 2020-07-14 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US10788790B2 (en) | 2007-03-23 | 2020-09-29 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US11204584B2 (en) | 2007-03-23 | 2021-12-21 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US10795312B2 (en) | 2007-03-23 | 2020-10-06 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US10816931B2 (en) | 2007-03-23 | 2020-10-27 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US9836015B2 (en) | 2007-03-23 | 2017-12-05 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US9817333B2 (en) | 2007-03-23 | 2017-11-14 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US9703257B2 (en) | 2007-03-23 | 2017-07-11 | Canon Kabushiki Kaisha | Electrophotographic image forming apparatus, developing apparatus, and coupling member |
US10901360B2 (en) | 2008-06-20 | 2021-01-26 | Canon Kabushiki Kaisha | Cartridge, mounting method for coupling member, and disassembling method for coupling member |
US10095179B2 (en) | 2008-06-20 | 2018-10-09 | Canon Kabushiki Kaisha | Cartridge, mounting method for coupling member, and disassembling method for coupling member |
US11209772B2 (en) | 2008-06-20 | 2021-12-28 | Canon Kabushiki Kaisha | Cartridge, mounting method for coupling member, and disassemblying method for coupling member |
US9594343B2 (en) | 2008-06-20 | 2017-03-14 | Canon Kabushiki Kaisha | Cartridge, mounting method for coupling member, and disassembling method for coupling member |
US10545450B2 (en) | 2008-06-20 | 2020-01-28 | Canon Kabushiki Kaisha | Cartridge, mounting method for coupling member, and disassembling method for coupling member |
US9477201B2 (en) | 2008-06-20 | 2016-10-25 | Canon Kabushiki Kaisha | Cartridge, mounting method for coupling member, and disassembling method for coupling member |
Also Published As
Publication number | Publication date |
---|---|
EP1892585A2 (en) | 2008-02-27 |
CN101131558B (en) | 2011-12-28 |
KR20080018671A (en) | 2008-02-28 |
US20080050131A1 (en) | 2008-02-28 |
EP1892585B1 (en) | 2012-05-16 |
KR101248870B1 (en) | 2013-03-28 |
CN101131558A (en) | 2008-02-27 |
EP1892585A3 (en) | 2011-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102448605B1 (en) | development cartridge and electrophotographic image forming apparatus adapting the same | |
US7376373B2 (en) | Image forming apparatus having a power transmitting device to selectively operate developing units thereof | |
US7979008B2 (en) | Toner supplying device, developing device and image forming apparatus having toner supplying device | |
US8903277B2 (en) | Drive transmitter and image forming apparatus | |
JP6503741B2 (en) | Rotational drive transmission device and image forming apparatus provided with the rotational drive transmission device | |
CN108241274A (en) | Clutch apparatus, handle box and imaging device | |
US20080145091A1 (en) | Image forming apparatus and power coupling device thereof | |
JP2004114652A (en) | Data reading controller | |
CN101080678B (en) | Developer supply container and developer supplying system | |
US6873819B2 (en) | Wasted toner storing apparatus of an image forming apparatus having a rotating dispersing member | |
EP3173869B1 (en) | Drive transmission mechanism and image forming apparatus therewith | |
US6832063B2 (en) | Apparatus for driving developers of color image forming apparatus | |
US7447460B2 (en) | Color image forming device having an output toner transport member | |
JP6241388B2 (en) | Image forming apparatus | |
JP6332241B2 (en) | Powder container and image forming apparatus | |
JP6743390B2 (en) | Drive transmission device and image forming apparatus | |
US7450888B2 (en) | Image forming apparatus and method of detecting home position error by sensing an indicating unit | |
JP2007065392A (en) | Image forming apparatus | |
US7610000B2 (en) | Developing device driver and an image forming apparatus using the same | |
US20130051812A1 (en) | Image forming apparatus | |
JP2008039057A (en) | Drive transmission device, one-way clutch device, roll drive device and image forming device | |
JP2008033161A (en) | Image forming apparatus | |
JP2004211748A (en) | Cam | |
JP2008033162A (en) | Image forming apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, SUNG-DAE;YOON, YOUNG-MIN;REEL/FRAME:019005/0338 Effective date: 20070214 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: S-PRINTING SOLUTION CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAMSUNG ELECTRONICS CO., LTD;REEL/FRAME:041852/0125 Effective date: 20161104 |
|
AS | Assignment |
Owner name: HP PRINTING KOREA CO., LTD., KOREA, REPUBLIC OF Free format text: CHANGE OF NAME;ASSIGNOR:S-PRINTING SOLUTION CO., LTD.;REEL/FRAME:047370/0405 Effective date: 20180316 |
|
AS | Assignment |
Owner name: HP PRINTING KOREA CO., LTD., KOREA, REPUBLIC OF Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE DOCUMENTATION EVIDENCING THE CHANGE OF NAME PREVIOUSLY RECORDED ON REEL 047370 FRAME 0405. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME;ASSIGNOR:S-PRINTING SOLUTION CO., LTD.;REEL/FRAME:047769/0001 Effective date: 20180316 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 8 |
|
AS | Assignment |
Owner name: HP PRINTING KOREA CO., LTD., KOREA, REPUBLIC OF Free format text: CHANGE OF LEGAL ENTITY EFFECTIVE AUG. 31, 2018;ASSIGNOR:HP PRINTING KOREA CO., LTD.;REEL/FRAME:050938/0139 Effective date: 20190611 |
|
AS | Assignment |
Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., TEXAS Free format text: CONFIRMATORY ASSIGNMENT EFFECTIVE NOVEMBER 1, 2018;ASSIGNOR:HP PRINTING KOREA CO., LTD.;REEL/FRAME:050747/0080 Effective date: 20190826 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20230712 |